Here is my issue. I have 3 pc's all on the same router. one is wireless and running linux mint 16, the other two are wired with one running w7 ultimate 32 and the other running w7 ultimate 64. Since about the beginning of April the 32 bit machine cannot access the 64 bit machine. It shows it in the network but cannot ping or view files. I can view and ping the 32 machine from the 64 machine though. Both can access the linux pc and there are no issues there. This is only an issue with the 32 machine. This is also a work pc for me and is a major problem. I use synergy to share my mouse and keyboard and haven't changed anything. It was working fine for a few years and all of a sudden it stopped.